E-Mail adress problem

Hi everyone !
I currently have a problem, I want to register to the -Yoink!- Infinity Challenge, but it says that my adress is already registered, but I didn’t register yet, so WTF ? I already had a problem with my GT and my e-mail adress with HaloWaypoint, but both are linked since H3, so, if anyone already had this problem and solved it… :slight_smile:

PS: Sorry for my bad english, I’m French.

Sounds like somebody else has used your e-mail address.

It seems impossible, I created it 7 years ago, maybe more, and the only problem that I have is with HaloWaypont…
Damn, should I write to Microsoft an e-mail to report the problem ?